Bump translate version to 0.2.8-SNAPSHOT

Author: mziccard

gcloud-java-translate/pom.xml

@@ -11,7 +11,7 @@
   <parent>
     <groupId>com.google.cloud</groupId>
     <artifactId>gcloud-java-pom</artifactId>
-    <version>0.2.7-SNAPSHOT</version>
+    <version>0.2.8-SNAPSHOT</version>
   </parent>
   <properties>
     <site.installationModule>gcloud-java-translate</site.installationModule>